The postponement, driven primarily by thick clouds, was the second scrub of the flight since an issue with the rocket on Saturday night.

NASA’s PUNCH mission has officially come online, promising to transform our understanding of space weather. By capturing global, 3D views of the Sun’s corona, PUNCH will reveal how solar wind and explosive solar events evolve and impact our planet.

The spacecraft, SPHEREx and PUNCH, had been expected to launch on a SpaceX rocket on Saturday. Two NASA missions will have to wait longer for a launch aboard a single rocket. Both aim to unravel mysteries about the universe — one by peering far from Earth,

Watch live as NASA launches the SPHEREx telescope and PUNCH mission aboard a SpaceX Falcon 9 rocket to explore the universe and the sun. SPHEREx will create a 3D all-sky map of 450 million galaxies, while PUNCH will use small satellites to study the sun’s impact on space weather and Earth’s communications.